Air-heating stove



(No Model.

JFBATCHELDER, Jr.

Ar-Heating Stove.

No. 23l,390.

Patented Aug. 24,188&

NIHER& FMDTD-LITHDGRAPNER, WASHINGTON. [L C.

UNITED STATES PATENT OFFICE@ JOHN BATCHELDEE, JR., OF JAMAIGA PLAINS, MASSACHUSETTS.

AI R-HEATING STOVE.

SPECIFICATION forming part of Letters Patent No. 231,390, dated August 24, 1880.

Application filed May 21, 1880.

' To alt whom it may concem:

Be it known that I, JOHN BATCHELDER, Jr., of Jamaica Plains, of the county of Suffolk and State of Massachusetts, have invented a new and useful Improvementin Air- Heating Stoves or Furnaces; and I do hereby declare the same to be described in the following specification, and represented in the accompanying drawings, of which- Figure 1 is a side elevation, Fig. 2 a top View, and Fig. 3 a transverse and vertical section, of an air-heating furnace or stove containing my invention, the nature'of which is fully set forth in the claims hereinafter presented. Fig. 4 is a section showing the connection of the pipe t, hereinafter mentioned, with the ash-chamber o and the chamber h, also hereinafter described.

In such drawings, A denotes the case of such stove or furnace, it having within it a thei-chamber, a, a grate, b, an ash-chamber, c, and a smoke-space, d, the latter being directly over the thei-chamber and provided with an educt, e.

The opening or fire-place throat for 'the introduction of fuel is shown at f.

In the upper part of the case A there is a shallow chamber, g, divided into two sections, h i, by a partitionfl, which extends across it diametrically and from the top to the bottom of it. Leading out of one of the said sections and into the other, and extending down into the upper portion of the smoke-chamber or space d, is a series of bent or U-shaped pipcs, Z. Furthermore, there is to one of the sections an induct, m, by means of which air under pressure is to be allowed or caused to pass into the section, a blower or suitable air-blast apparatus being used for the purpose of forcing such air into the section. The said air will pass through the pipes l, and thence into the other section, and during its passage the air will be heated by such pipes, which, in turn, will be heated by the heat and smoke and hot gases arising from the fuel. The air so heated and received into the section z' may be conveyed therefrom by one or more educts or pipes, m' n, to one or more apartments to be warmed.

To one of the ednct-s--viz., that marked m'- (No model.)

there is a perforated valve-seat, n', to which a rotary valve, r, similarly perforated is applied, such valve being connected by a crank pin or stud, o, with a rod, p, terminating in a fioat, s, to extend down within a deep vessel, p to be charged with mercury, the said vessel being fixed to a plate, q, that rests against the case A.

As the mercury may become heated it will expand and force the rod upward, so as to move the valve on its center sufficient to diminish the out-flow of the hot air. So, When the heat of the furnace may decrease the valve will move so as to increase the outflow of the air, the whole serving to keep at an even temperature the room or rooms into which the heated air may be forced. Furthermore, there leads out from the air-receiving section l of the chamber g, and down to and opening into the ash-chamber, a pipe, t, provided with a damper, u, such pipe being to carry air into the ash-chamber, in order to supply such air to the fuel, and thereby facilitate the combustion thereof.

A stove having a tube leading down from its top and into its smoke-chamber, and open at top and closed at bottom, and provided with oranch tubes leading radially into it from the sides of the stove, is not new as is shown in the United Sta-tes Patent No. 171,(391. This is unlike my stove, inasmuch as it has no chamber in its upper part and a partition to eXtend diametrically across such; nor has it pipes to eXtend from such chamber into the smoke-chamber of the stove and with reference to the partition, as is the case in my stove. Furthermore, a heating-drum having bent pipes arranged to extend into it and out of its top is not new, as is shown in the United States Patent No. 29,132, such differing from my stove, as it has no chamber and partition arranged with the pipes, as is the case in my stove.

I claim- 1. The stove or furnace provided with the chamber g and partition 70 and the series of pipes l, arranged in the case A, and with respect to the smoke-chamber and fire-place, substantially as and to operate as and for the purpose set forth, the divided chamber hav- IOO ing an induct and one or more educts, as exfrom and out of the air-receiving* section of the planed. chamber down to and opening ito the ash 2. The combination of the pipe t, provided chamber, as explaned. with the damper u, with the stove or furace, JOHN BATGHELDER, J R. 5 the divided ehamber, and the series of pipes Witnesses:

arranged with such chamber and the fire- R. H. EDDY, place, a-s set forth, such pipe tbeingextended W. W. LUNT. 

